The Glenfinnan Viaduct is one of the best known landmarks in Scotland but at 123 years old, it’s in need of restoration work.
Rope access teams have been working day and night in recent months to strengthen the bridge’s concrete arches and trackside areas.
Made famous by the Harry Potter film series, hundreds of visitors gather at the viaduct each day to watch the “Hogwarts Express” train cross its 21 arches.
The BBC’s Iain Macinnes visited Glenfinnan to see how the work is progressing.
Video by Morgan Spence and Jose Silver
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